A compound is the combination of only two words.
错误
复合法是把两个、甚至经常是两个以上的单词结合在一起构成新单词的方法。不同词类的单词可以被组合到一起构成复合词。改正：Somecompoundscontainmorethantwowords.
_ an order for 100 pieces or more, we allow a special discount of 5% for payment by L/C.
Counter sample is made by ( ) which can help avoid disputes over the quality of goods in the future transaction.